brunton



(No Model.) 3 Sheet-Sheet l.

J. D. BRUNTON 82: P. H. J. TRIBE.

MACHINERY FOR DRESSING STONE.

No. 252,724. Patented Jan. 24,1882.

J72 zren to m,-

liw 1% N. PETERS. Phulo'Liklwgnphlr, Wnhin im. D. C.

(No Model.) I 3 Shets-Sheet 2.

J. D. BRUNTON & F. H. J. TRIBE.

MACHINERY FOR DRESSING STONE. I No. 252,724. Patented Jan. 24,1882.

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N PETERS. Phololflhcgrapfwr, Wnhingwn. D. C

(No Model.) 3 Sheets-Sheet 3.

J. D. BRUNTON 8: P. H. J. TRIBE.

MACHINERY FOR DRESSING STONE.

No. 252,724. Patented Ja.11.24,1882.

N4 PEYEHS, PhoIo-Lilhagnphnr, Waihinglon, U. C.

UNITED STATES PATENT Erica JOHN D. BRUNTON AND FRANK H. J. TRIER, OF WESTMINSTER, COUNTY OF :MIDDLESEX, ENGLAND.

MACHINERY, FOR DRESSING STONE.

SPECIFICATION forming part of Letters Patent No. 252,724, dated January 24, 1882. Application filed September es, 188]. (No model.)

To all whom it may concern Be it known that we, JOHN DICKINSONBRUN- TON and FRANK HENRY J ULIUs Turns, (com monly known as FRANK TRIER,) subjects of 5 the Queen of Great Britain, and residing at 19 Great George Street, Westminster, in the county of Middlesex and Kingdom of England, have invented certain Improvements in Machinery for Dressing Stone, of which the fol- Io lowing is a specification.

Our present invention relates to the general structure of machines for carrying out the operation of dressing stone by means of chucks carrying cutting-disks, as described in the specifications to former Letters Patentof the United States of America granted to the said John Dickinson Brunton. dated the 14th of November, 1876, No. 184,330, and granted to us, dated the 11th ofFebruary, 1879, No. 212,182. 20 According to our present invention each machine consists of a slide or slides carrying the chuck, and adapted to guides in a framing, and operated by suitable devices, as hereinafter described, so as to enable the chuck and 2 cutting-disks to be adjusted in various directions in relation to the stone. to be operated upon; also, of a table for carrying the stone,-

and means of traversing the same, with railtracks so arranged that the table carrying the 0 stone which has been dressed may be readily moved out of the range of the machine, while another table bearing afresh block of stone to be operated upon is run beneath or opposite the chuck, the means of circulating the table thus rendering the operations of the machine practically continuous; also, of means for introducing soap and water for lubricating the parts in the interior of the chuck; also, of devices for varying the tilt or inclination of the 40 chuck. i

In order that oursaid invention maybe fully understood, we shall now proceed more particularly to describe the same, and for that purpose shall refer to the several figures on 5 the annexed sheets of drawings, the same letters of reference indicating corresponding parts in all the corresponding figures.

The machines consist of three types, all embodying the same general features, but adapted to three respective classes of work. Type No.1, which we designate a top-dresser, and which is adapted for granite and other. very hard stone, is illustrated in front and side elevation, respectively, in Figures Nos. 1 and 2. Type No. 2, which we term a .side-dresser, external, and which is adapted for grit-stones, sand and free stones of moderate hardness, is illustrated in end and side elevation in Figs.

3 and 4, respectively. Type No. 3, which'we designate a side-dresser,internal, and which is adapted for dressing large blocks of the same kind of stone as type No. 2, is illustrated in end and side elevation in Figs. 5 and 6, re-' spectively.

Fig. 7 is a diagram plan, illustrating the arrangement for securing the circulation of the tables in which the stones to be dressed are fixed without hinderance to the continual working of the machine. Figs. Sand Qare a detail section and plan, illustrating the mode of fix- 7o ing the cutters on their spindles. .Fig. 10 is a diagram illustrative of the inclination to the surface of the stone or tilt given to the chuck. Fig. 11 is a section showing ,the manner in which 'th'e direction'of this tilt is'changeth Referring to Figs. 1 and 2, A is the chuck carrying cutters, to which mechanical rotation is imparted as described in the former specifications. B is bevel-geariug through which the motion given to the cone-pulley G by a belt is communicated through the central shaft, 0', Fig. 11, on which said beveled gear is fixed, to the central wheel inthe interior of, the chuck; D, bevel-gearing by which a belt on'the pulley E drives the chuck itself; F, a saddle carrying the chuck with its driving-gear; G, horizontal slide, on which F is mounted; a, fast and loose pulleys, by which and the intermediate toothed wheels I) the screw 0 is driven and F caused to slide, as required, along G; d (1, vertical screws, by which G is suspended.

G is raised or lowered by the revolution of the nuts 0 e, which are driven by worm-wheels and worm fromthe fast and loose pulleys s. S S are the main standards, bolted down on the 5 bed-plate I; Q, table on which the stone to be dressed is fixed. It is fitted, asare the tables in all our surfacing-machines, with both slides and wheels. While passing under the chuck it slides on I, the bed of the machine; but on reaching the end of the bed its wheels pass on to rails ff, (see Fig. 7,) and the table can then be easily moved about. The table is driven either by toothedwheels, as shown in Figs. 1 and 2, or by worms, as shown in Figs. 3 and 4, working into a rack on its under side. h h h are the toothed wheels, Figs. 1 and 2. h is driven direct and by means of the bevel-wheels i, and the hevel-gear shown on the shaft j gives simultaneous motion to'h W. The rotation of h is' derived either through the worm l and worm wheel m, which is the slow working speed of the table, or through the pinion and wheel a 0 from the belt-pulley k, which is the quick speed, convenient for returning the table or moving it when not dressing stone. Either speed can be brought into action by the clutch p. The shaftcarrying the worm lmaybe driven in any convenient manner.

In order to give the machine when working the greatest possible stability, the sliding surfaces--that is to say, of G on S S and of F on G-are clamped firmly by clam pin g-serews g r g g.

The lubrication of the gearing an d spindles in the interior of the chuck is effected by a solution of soap and soda in water, which enters through the central shaft, to which it is conveyed by the flexible tube 1'. The shaft 1' for this purpose is made hollow, and at its lower end opens into the interior of the chuck. By this means proper lubrication of all the parts can be maintained without stopping the machine.

In order to avoid a backdrag of the cutters over the surface already dressed, the axis of the chuck-spindle is slightly inclined to the plane of that surface, as shown in diagram in Fig. 10.. \Ve call th s inclination the tilt of the chuck.

If it is desired that a machine shall be capable of dressing stones traveling in either direction on the bed, it becomes necessary to alter the direction of this tilt. This is done by placing the chuck-spindle in a cylinder, the axis of the cylinder'being vertical to the surface of the stone, but the axis of the spindle being inclined to it. This arrangement is illustrated in Fig. 11. A is the cylinder, the axis a bof which is vertical to the face of the stone. B is the chuck-spindle, of which the axis 0 d is inclined to the face of the stone. By turning the cylinder A the direction of the tiltmay be varied as required. A may be turned either by a wheel, 0, and worm f, as shown, or by any other convenient means.

Figs. 3 and 4 represent a machine of type No. 2, designated a side dresser, external. A is the chuck, carried upon ashaft which runs in the projecting boss of the sliding saddle T. Upon the other end of the shaft is the pulley K, by which the chuck is driven. The central wheel in thein terior ot thechuckis keyed upon a shaft passing through the center of the chuckshaft, upon the outer end of which is keyed the pulley H, by means of which the central wheel is driven. The chuck is lubricated, as

already described in connection with the machine of N o. 1 type, through the central shaft by'mea-ns of the flexible tube 1'. S is the main standard; T, the sliding saddle, which slides on the faces of the standard. It is suspended to the screw U, and is raised or lowered by the revolutions of the nut a, which is driven by bevel-gearing from the fast and loose pulleys P I. Q is the table, on which is fixed by any convenient means the stone \V; R R R, worms worked in the toothed rack on the under side of the table, and giving to it a sliding movement on X, the bed V, bevel-gearing by which motion is imparted to the worm-shaft carrying the worms R; M M, screws for clamping the saddle T against the face of the standard S. The tilt is given to the chuck in this machine by means of a cylinder, Z, and an inclination of the axis of the chuck-shaft t0 the axis of Z, as already described with reference to type No. 1. Z is turned around by the handles L so as to change the direction of the tilt. In the case of these machines Z can also slide horizontally to and fro in the saddle T, carrying with it the chuck, for the purpose of regulating the depth of cut to be taken of! a stone, and is fixed in its place, when adjusted, by the clamping-screws N N. The to-and-fro movements of Z are effected by a toothed sector working in a rack on the surface of Z and operated'by a lever in the socket y.

Figs. 5 and 6 represent a machine of type 'No. 3, designated an internal side dresser.

A is the chuck, having'the cutters inclined toward the center, so as to dress the stone with their inner periphery S, a standard carrying the chuck-shaft; K, a pulley driving thechuck H, a conemlley, by which motion is communicated to the central wheel in the interior of the chuck through the toothed gearing shown. Z is the cylinder, within which are the bearings of the chuck-shaft. The axes of the shaft and cylinder may coincide, in which casethere would be no tilt, and this is the most usual arrangement; or an inclination may be given to the chuck-shaft which would impart a corresponding tilt to the chuck, as already described.

'Y is a hand-wheel, by which Z can be moved to and I'm to regulate the depth of cut off the surface of the stone. 1 is the bed. Q is the table, driven by the pulley-shaft a, operating through worm and worm-wheel, as shown.

The 'mode of effecting the circulation of the tables hereinbefore referred to is illustrated in Fig. 7. The table on which the stone is fixed is fitted with both slides and wheels. To se cure stability the table slides on the bed I, and the stone is dressed while it slides. On reaching the end of the bed the wheels meet the rails ff and the table moves forward on them. At a convenient distance from each end of the bed (and in no case should this distance beless than the length ofthe table) a wagon or trolley, as, carrying rails of the gage of the table-wheels, runs on a cross-line, B, of lower level, so that the rails on the trolley form a continuation of the line of railsff. Thus the IIO tables can be readily run onto the trolley and be brought by it in line with a second line of rails, 0. While on this line the stone should be'fixed on the tables, ready to be brought by means of one of the trolleys into line with the rails f f and the bed. By this arrangement the machine may be kept constantly at work.

In Fig. 7, K is the pulley driving the chuck. H is the pulley driving the central shaft; R R, the worms driving the table by worm-rack underneath'it. The worms R are actuated by worm-wheel and a worm on the pulley-shaft a.

Fig. 8 is a section, and Fig. 9 is aplan, of a nut for fixing the cutters on their spindles. a is the nut, which is sawed through, as shown at I)". It is formed with a cone, 1, on one face, which enters into a corresponding conical hole in the cutter 0 The wedge action due to the conical form causes the nut to contract round the screw and to gripe it, thus producing, as between the spindle and the cutter, a hold of great stability and firmness. This mode of fixing the cutters upon their spindles is not claimed under our present application, as it will form the subject of aseparate application for Letters Patent to be subsequently made.

We claim as our invention- 1. The combination, with the power-driven chuck and positively-driven rotating cuttingdisks carried by the same, of means, substantially as hereinbefore dtSCIlbBd, whereby the lubricant may be introduced into the interior of the chuck through the central shaft which imparts movement to the cutting-disks.

2. The herein-described machinery fordress- 3 5 ing stone, comprisin gthe rotatingpower-driven chuck and positively-driven rotatingcuttingdisks carried by the same, means, substantially as described, for introducing lubricating fluid to the interior of the chuck,the chuck-carrying 4o slide or slides, and the guides for said slides, arranged and operated as herein set forth, to enable the chuck and cutting-disks to be adjusted in various directions in relation to the stone to be operated on, the stone-carrying 4 5 table, with means for traversing the same, and rail-tracks for the circulation of the table, with or without devices for varying the tilt or iiiclination of the chuck, the whole arranged and combined together to operate in the man- 50 ner and for the purpose hereinbel'ore set forth.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

JOHN DICKINSON BRUNTON. FRANK HENRY JULIUS TRIER.

Witnesses to the signature ofJohn Dickinson Brunton:

OHAs. MILLs, JOHN JAMES, 7 Both of 47 Lincolns lnal ields, London. Witnesses to the signature of Frank Henry Julius Trier, (commonly known as Frank Trier:)

F. ENGLERT, FRANZ MiiLLER,

, Both of Mannheim. 

